Finding the Fourth Proportional to 127,713.60, 176,244.81 and 74,029.76
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Solution
The fourth proportional to 127,713.60, 176,244.81 and 74,029.76 is: 102,161.09
Step by Step Solution
- Step 1: Write the proportion equation
127,713.60 : 176,244.81 = 74,029.76 : x - Step 2: Convert to fraction form
127,713.60/176,244.81 = 74,029.76/x - Step 3: Cross multiply
127,713.60x = 176,244.81 × 74,029.76 - Step 4: Simplify right side
127,713.60x = 13,047,360,985.55 - Step 5: Solve for x
x = 13,047,360,985.55/127,713.60 - Step 6: Final answer
x = 102,161.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.